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352 Uppsatser om Dimensioning of wall beams according to EC - Sida 10 av 24
Cone. En armatur som bärs upp av sin egen ljuskägla.
Inspired by how to sketch a light cone from a flashlight in a comic I wanted to create an armature carried only by its own light cone. To manage this challenge I sketched in an architectural and sculptural way, where I chose to ignore the function of the lamp as long as possible.As a result I developed an armature with a stunning shape, with an illusion that it was carried by its own light cone. It could be hanged on a wall, placed on a table, pushed against a ceiling or standing on the floor.Depending of its size the light cone from the light source lightens up the surface and draws attention to the otherwise forgotten wallpaper or the undisposed statue in the darkness of the city..
Smarta prefabmoduler för småhus i betong
This report examines the possibility of developing a modular system for concrete homes that cancontribute to greater diversity of today's market. The issue was whether it ? from a competitive pointof view ? is possible to produce smart prefab modules that customers themselves can combine to avilla. The report addresses the question how the modules and wall panels should be designed for thegreatest variety of floor plans.With regard to what is asked of the customer interviews where held for the purpose ofunderstanding concrete's popularity and elements of high value in their homes today. The answersfrom the interviews laid ground for four prototype homes which were made to demonstrate how theelements can be combined to achieve different types of houses..
Konstruktion av en autonom vindstation
Construction of an autonomous wind station was a project with the goal of creating a product that could collect wind data from a sensor and then transfer this data to a server wirelessly over the GSM network. The device would be powered by batteries and solar cells and function fully without requiring external power supply. This required that a small computer was constructed and programmed to store and send data at predetermined cycle times and programming of a server that received the sent data. The project also required optimization of power consumption and dimensioning of solar cells and batteries based on this. The construction of this station demanded research both for the selection of hardware and programming software. The computer was based on a microcontroller and a GSM module that sent the data over the 2G network.
Stabilisering av lätta trähus
Med Tommy Persson kvalitets- och produktchef vid Masonite Beams AB i Rundvik diskuterades problemet kring infästning av väggelement med hög färdighetsgrad till grunden. Det bestämdes att arbetet skulle fokusera på en- och tvåbostadshus och att endast fenomenet stjälpning skulle beaktas.Lastfördelningen gjordes enligt vad Klas Nyman skrivit i sitt examensarbete Tredimensionella effekter vid horisontalstabilisering av volymbyggda trähus. Beräkningar av lyftkraft gjordes enligt den plastiska metoden med syllen förankrad mot lyft medan frontregeln inte är förankrad mot lyftning som Bo Källsner och Ulf Arne Girhammar beskriver i sin bok Horisontalstabilisering av träregelstommar. För beräkning av skruvars bärförmåga tillämpades Eurokod 5. För beräkning av 5-percentilsvärden från provning tillämpades SS-EN 14358:2006 Träkonstruktioner.Resultat; de två studerade fästmetodernas dimensionerande bärförmåga är 1.61 kN och 1,23 kN, lyftkraften i syllen är i storleksordningen 3-19 kN/m.Rapporten kan ses som en fingervisning på hur stora lyftkrafter som uppstår i syllen när det blåser och ett alternativ på hur man ska beräkna dessa lyftkrafter.
Prefabricerade passivhusväggar
Background: The most energy efficient houses today are so called passive houses. These houses achieve high energy-efficiency partly by having well insulated walls. U-value describes the amount of heat transfered through a building element, the more insulation, the smaller U-value. A typical passive house wall have a U-value of 0.10 W/m2,°C. The passive houses are primarily made as small family houses and not as a block of apartments.
DESIGN AV ALUTON 38? FRAKTBÅT FÖR KUSTNÄRA TRANSPORTER
This master thesis is about designing and dimensioning a boat for transport of caravan, car, trailer or ATV. Buoyancy and stability are important properties as the pontoonboat should also be able to serve as a workboat. Many of the vessels on the market today that is being used for similar purpose are stable enough, but their hull is often similar with barges and thus too slow. This work has been to construct a boat that has good stability but also has a hull that enables it to move faster, is more maneuverable and having a more attracting design than today?s barges.
Erfarenhetsåterföring för industriellt byggande i samverkan: Erfarenhetsåterföringsmodell för MIKS-projekt med Masonite Beams AB som systemägare, baserad på tillverkningsindustrins processförbättringsfilosofier utifrån referensprojektet "Kv. Kullen"
Den generella svenska byggprocessen idag är inte utformad för att hantera hela processen som ett system, vilket innebär att förändringar krävs inom såväl processen som dess styrning. Inom bostadsbyggande är produktivitetsutvecklingen betydligt lägre än i tillverkningsindustrin och man brottas med bristande samarbete mellan aktörer, svagt engagemang, en fragmenterande byggprocess och bristande helhetssyn. Att skapa maximalt värde för kunden och minimera slöserier är grundläggande för ?lean production? och ?Toyota Production System?, TPS, två av tillverkningsindustrins mest framgångsrika processfilosofier.För att uppnå ett effektivt och fungerande helhetskoncept bör industriellt byggande behandlas med ett systemtänkande, baserat på långsiktiga och kontinuerliga processer med fokus på kunderna. Inom systemtänkandet bör processer och metoder struktureras, teknik standardiseras och kunskap återförs till processerna.MFB, Masonite Flexibla Byggsystem, är ett byggsystem för industriellt byggande med hög prefabriceringsgrad där andelen montagearbete på byggarbetsplats underlättas och minimeras.
Frå BKR till Eurokod : Dimensionering i Eurokod
From January 1st 2011 the use of Eurocode will be mandatory for all constructionprojects. Eurocode is the common European set of struc-tural design codes which willreplace BKR (Boverkets Kon-struktionsregler). BKR is the Swedish set of structuraldesign codes that was used up until December 31 2010. For consulting firms this willcre-ate a need for them to invest in the standards and in education for thecoworkers. This will involve both time and costs for the company.The purpose and aim of this master thesis is the development of compute examplesand calculations aid by dimensioning with Euro-code.
Omkonstruktion av lastväxlare Livab
The degree project was made forZetterbergs Industri AB. The company is market leading in Europe in the heavyvehicle industry, designing and building body systems for trucks.In their line of products is the hook lift called Livab, a flexible and uniqueproduct. The hook lift is often demanded by customers because its special ability tobe able to operate in situations with low roof clearance. The main operation principleof the hook lift can be described as a truck stand, laid down.There are two main versions of the hook lift Livab, AL 26 and AL 32. These are ofdifferent load capacity, 17 and 25 metric tons of gross weight respectively.
Spillvärmeåtervinning
SAPA´s resource of waste heat is the basis for this thesis to investigate the possibility of energy assets in their cooling water and possible uses for it. The energy in the waste water is greater than the current need which has three uses which are (1) heating the factory, (2) converting liquid propane to propane gas and (3) local domestic heating. The average energy load that is available is 1, 7 MW and the average temperature in the cooling water is 41°C. The total energy load at dimensioning out side temperature is approximately 1,6 MW for the three current uses. The temperature is currently too low to be used directly in the existing systems so an upgrade is needed.
Skydd mot yterosion i slänter av finmorän
Slopes in fine till soils are exposed to surface erosion due to rainfall, snowmelt and upland water sources. Large areas of road slopes are therefore covered for surface erosion protection. Preventive methods like ditches and trenches are also being used. Silt tills are particularly troublesome since the water can bring the soil into suspension and cause mudslides. Different methods for erosion protection have been studied in this work, with the emphasis placed on rockfill covering. The need for and the dimensioning of this type of covering has been examined in literature and field studies.
Det anglo-saxiska inflytandet på det tidiga Lund
Due to the Danish kings? engagements on the British Isles, the early town of Lund, was influenced by English and Anglo Saxon traditions, architecture and technology. The main aim of this essay is to find out in what ways, and most importantly how this can be seen in the archaeological material, and how it changes over time. Within a framework of historical sources, archaeological finds like excavated stave and stone churches, cemeteries, pottery, and everyday personal objects, both English immigrants and English influence is found. The problem of the English origin of the palisade wall technique is discussed, as is early Lund as a Viking age town.
Vätning på mikroskala
Individual cellulose ?bers were studied to identify the transport and absorbtion phenomena as well as the in?uence of drying. A Chalmers University of Technologydeveloped method within ESEM (Enviromental Scanning Electron Microscope) has been used in this study. The results from the laborations gave the following conclu-sions: The transport of water occurs in ?bers in the ?ber wall surface and the lumen.
Vikta, hoprullade eller klippta i bitar? : Guldfoliefigurer samt deras fyndkontext
In this essay I have chosen to take a closer look at gold figure foils (Swedish ?guldgubbar?), find their context and analyze it. I have analyzed some earlier studies about gold figure foils that were found in Scandinavia.The focus of my study is based on the locations of the findings. Another important aspect is to discuss if the encountered gold figure foils that were folded and cut looked like that due to intentional motives or not.My conclusion is that when it comes to the locations of the findings they are mostly found in houses irrespective of if it´s in a posthole, wall or house foundation.The other conclusion is that the gold figure foils could have intentionally been manipulated before they ended up in the ground..
Standardiserad tillverkning av nätstationer
AbstractAbetong in Falkenberg manufactures, among other things, small prefabricated concrete buildings for housing various installations, such as electric transformers.The aim of this dissertation is to reduce the time needed to design such buildings, by way of finding a number of standardized buildings. Standardized in such a manner as to incorporate both the needs of the manufacturer (Abetong) and its customers.To analyze the needs of the parties the work has included a market survey and calculations on the strength of these buildings.One survey was a letter questionnaire to all of Abetong?s customers who have, in the past, ordered these types of building. The aim of the questionnaire was to establish how the customers want these buildings designed.Another survey conducted was an inventory of all of Abetong?s previous projects where these types of building were manufactured.